/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.jackrabbit.webdav.io;

import java.io.InputStream;
import java.util.Date;

import javax.servlet.http.HttpServletRequest;

import org.apache.jackrabbit.webdav.DavConstants;

/**
 * <code>InputContextImpl</code> class encapsulates the <code>InputStream</code>
 * and some header values as present in the POST, PUT or MKCOL request.
 */
public class InputContextImpl implements InputContext {

	private final HttpServletRequest request;
	private final InputStream in;

	public InputContextImpl(HttpServletRequest request, InputStream in) {
		if (request == null) {
			throw new IllegalArgumentException(
					"DavResource and Request must not be null.");
		}

		this.request = request;
		this.in = in;
	}

	/**
	 * Returns the content language or <code>null</code>.
	 * 
	 * @return contentLanguage
	 */
	public String getContentLanguage() {
		return request.getHeader(DavConstants.HEADER_CONTENT_LANGUAGE);
	}

	public long getContentLength() {
		int length = request.getIntHeader(DavConstants.HEADER_CONTENT_LENGTH);
		return Long.parseLong(length + "");
	}

	public String getContentType() {
		return request.getHeader(DavConstants.HEADER_CONTENT_TYPE);
	}

	/**
	 * Returns the input stream of the resource to import.
	 * 
	 * @return the input stream.
	 */
	public InputStream getInputStream() {
		return in;
	}

	public long getModificationTime() {
		return new Date().getTime();
	}

	public String getProperty(String propertyName) {
		return request.getHeader(propertyName);
	}

	public boolean hasStream() {
		return in != null;
	}
}
